r/CarHacking↗
Car Hacking: Hacks on CAN, OBD2, UDS, J1939, ECU, TCU,...
Car Hacking - The ECU and protocols like CANbus have become the heart and brain of most modern cars, but it has also become a locked down black box. This is a place for people interested in taking back control of the car they bought. New age hot rodders, ECOmodders, Security researchers, the curious, the paranoid, and the tinkerers are all welcome. We encourage the use of open source solutions and tools like arduino and rasberry pi.
56k subscribers217 posts / mo in Sep 2026167 authors / mosince 2015
r/CarHacking has 56k members (+50% over the last 12 months). It gets about 217 posts a month from 167 people. Top topics: Car Hacking, Car Tuning and Key Fobs & Remotes.
When to post on r/CarHacking
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How r/CarHacking has grown
Subscriber growth
Subscribers over time
Monthly activity
Posts, comments and authors per month
Topics and brands on r/CarHacking
Top topics
Share of the subreddit's posts
- Car Hacking13%
- Car Tuning2.6%
- Key Fobs & Remotes2.2%
- CarPlay Updates & Issues1.7%
- Android Auto1.5%
Brands people mention
Most-mentioned brands and sites, last 12 months
- Apple
- comma
- Aliexpress
- ChatGPT
Everything else about r/CarHacking
Posting rules and account requirements, how often posts get removed, who writes here (age, gender, countries), what people ask for, how they talk, and related subreddits — all in the full report.
Posts and activity for Sep 2026. Members from Reddit's subscriber counts. Read from the same data the app runs on. Our research